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BIOD322 / BIOD 322 Module 3 (Latest Update 2025 / 2026) Neuroscience | Questions & Answers | Grade A | 100% Correct - Portage Learning
Neuroscience Research Methods
Question:
Relies on X-ray technology that was developed in the 1895
Answer:
Computerized tomography (CT) scan
Question:
High-energy beams of electromagnetic radiation that are capable of passing through many physical objects
Answer:
X-rays
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Question:
Material that is more dense shows up as what color in an X-ray? Less dense?
Answer:
More dense - white Less dense - grey
Question:
A three-dimensional X-ray that revolves around the person as they move through the scanner; uses a computer that detects the passage of X-rays, located directly across the emission source of the X-ray
Answer:
CT scan
Question:
How much spatial resolution does a CT scan give us? Is temporal resolution considered?
Answer:
About 0.5mm; No temporal resolution is not considered
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Question:
CT is great for identifying and diagnosing..
Answer:
particular brain conditions (tumor changes and intracranial bleeds)
Question:
What is the one drawback from a CT scan and X-ray?
Answer:
X-rays are highly mutagenic. They interfere with natural DNA replication
Question:
What moves differently in grey and white matter?
Answer:
Water molecules
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Question:
Quantifies white matter because of the morphological features of white matter; Uses MRI technology to detect and quantify the movement of water molecules
Answer:
Diffusion Tensor imaging (DTI)
Question:
A single molecule of water in the middle of a cup can move in any direction with equal probability. This type of motion is called
Answer:
isotropic diffusion
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